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Speciality

Mellotron M4000DvsMellotron Micro Module

Summary

Mellotron M4000D and Mellotron Micro Module: 2 Mellotron specialitys compared side by side. They differ on 10 of 12 compared specifications.

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2 items

Mellotron

M4000D
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Mellotron

Micro Module
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General
ManufacturerMellotronMellotron
StatusCurrentCurrent
Released20102025
Instrument
TypeDigital tape replayDigital tape replay
Sound engineDigital playback of Mellotron and Chamberlin tapes: 100 sounds built in (Sound Card 01), plus an expansion slot for 100 more on CompactFlash; Mellotron/Chamberlin character modes, motor modulation, tape-rewind emulationMicro engine on microSD: 100 Mellotron and Chamberlin sounds; not expandable
Polyphony10 notes10 notes
Features100 Mellotron and Chamberlin sounds from first-generation master tapes, 24-bit uncompressed playback, A/B sound mix, Half-speed playback, Pitch control, Two colour displays, Expansion card slot, Furniture-grade cabinet with hinged lid, Separate A, B and master outputs100 Mellotron and Chamberlin sounds, 24-bit uncompressed playback, Responds to mono and polyphonic aftertouch over MIDI, High/low switch drops playback one or two octaves, Two displays, Firmware updates via iOS app
Keyboard
Keys37—
AftertouchPolyphonic (sent over MIDI)None
KeybedHand-built wooden Mellotron-style keys with per-key depth sensing, F to F—
Connections
OutputsXLR balanced, 1/4-inch unbalanced, Headphones1/4-inch unbalanced, Headphones
MIDI portsDIN in, DIN out, DIN thru3.5 mm TRS in (Type B), 3.5 mm TRS thru (Type B)
Pedal inputsVolume, Sustain, Expression, ExpressionSustain
Size & weight
ColoursWhite, Black, Walnut, MahoganyWhite
Dimensions (W × D × H)859 × 501 × 135 mm184 × 135 × 65 mm
Weight17.5 kg0.71 kg

Key differences

  • Released: M4000D – 2010 Micro Module – 2025
  • Aftertouch: M4000D – Polyphonic (sent over MIDI) Micro Module – None
  • Sound engine: M4000D – Digital playback of Mellotron and Chamberlin tapes: 100 sounds built in (Sound Card 01), plus an expansion slot for 100 more on CompactFlash; Mellotron/Chamberlin character modes, motor modulation, tape-rewind emulation Micro Module – Micro engine on microSD: 100 Mellotron and Chamberlin sounds; not expandable
  • Dimensions (W × D × H): M4000D – 859 × 501 × 135 mm Micro Module – 184 × 135 × 65 mm
  • Weight: M4000D – 17.5 kg Micro Module – 0.71 kg

Both are the same on type (Digital tape replay).